factorial study
(factorial design, factorial trial)
— A type of randomized study in which the effects of two or more treatments are compared by giving them separately, together, or not at all; … (read more)

false negative test result
(beta, false negative, type 2 error)
— Mistakenly concluding that there is no difference in effect between treatments, or between a treatment and no treatment, when there actually is; … (read more)

false positive test result
— For tests, a false positive test result occurs when the index test result is positive, while the reference standard test is negative; … (read more)

false positive test result
(alpha, false positive, type 1 error)
— Mistakenly concluding that there is a difference in effect between treatments, or between treatment and no treatment, when there is actually no difference; … (read more)

follow-up
(post-treatment outcome measurement)
— In treatment comparisons, assessment of study participants after treatment, or the length of time that participants are observed after being allocated to a treatment comparison group; … (read more)

forest plot
— A graphical display of estimates, such as the effect estimates from each study included in a meta-analysis, together with the overall results; … (read more)